NO965283D0 - Mottakersystem med polarisasjons-diversitet - Google Patents

Mottakersystem med polarisasjons-diversitet

Info

Publication number
NO965283D0
NO965283D0 NO965283A NO965283A NO965283D0 NO 965283 D0 NO965283 D0 NO 965283D0 NO 965283 A NO965283 A NO 965283A NO 965283 A NO965283 A NO 965283A NO 965283 D0 NO965283 D0 NO 965283D0
Authority
NO
Norway
Prior art keywords
receiver system
polarization diversity
diversity
polarization
receiver
Prior art date
Application number
NO965283A
Other languages
English (en)
Other versions
NO319056B1 (no
NO965283L (no
Inventor
David B Hall
Original Assignee
Litton Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Litton Systems Inc filed Critical Litton Systems Inc
Publication of NO965283D0 publication Critical patent/NO965283D0/no
Publication of NO965283L publication Critical patent/NO965283L/no
Publication of NO319056B1 publication Critical patent/NO319056B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/64—Heterodyne, i.e. coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [IF] is obtained
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
    • G01J2009/0261—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods polarised

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Radio Transmission System (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
NO19965283A 1995-12-11 1996-12-10 Mottakersystem med polarisasjons-diversitet NO319056B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US849695P 1995-12-11 1995-12-11
US08/644,881 US5852507A (en) 1995-12-11 1996-05-10 High efficiency polarization diversity receiver system

Publications (3)

Publication Number Publication Date
NO965283D0 true NO965283D0 (no) 1996-12-10
NO965283L NO965283L (no) 1997-06-12
NO319056B1 NO319056B1 (no) 2005-06-13

Family

ID=26678251

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19965283A NO319056B1 (no) 1995-12-11 1996-12-10 Mottakersystem med polarisasjons-diversitet

Country Status (8)

Country Link
US (1) US5852507A (no)
EP (1) EP0779719B1 (no)
JP (1) JP3281827B2 (no)
KR (1) KR100279060B1 (no)
AU (1) AU704766B2 (no)
CA (1) CA2190915C (no)
DE (1) DE69632180T2 (no)
NO (1) NO319056B1 (no)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10153720A (ja) * 1996-11-25 1998-06-09 Sony Corp 光送受信装置
US6269198B1 (en) 1999-10-29 2001-07-31 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US6724319B1 (en) 1999-10-29 2004-04-20 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
CA2420169A1 (en) * 2000-07-28 2003-02-27 William Christopher Knaack Multi-channel optical receiver for processing tri-cell polarization diversity detector outputs
CN1228655C (zh) * 2001-04-03 2005-11-23 株式会社藤仓 平行光管透镜、纤维平行光管以及光学部件
US6678447B1 (en) * 2001-07-03 2004-01-13 Valyn International Adjustable multi-beam splitter and fiber coupler
GB2394848B (en) * 2002-11-02 2006-04-12 Bookham Technology Plc Optical communications apparatus
US7245418B2 (en) * 2005-03-18 2007-07-17 Northrop Grumman Corporation Electro-optic switching apparatus not requiring DC bias
US7035499B1 (en) 2005-03-18 2006-04-25 Northrop Grumman Corporation ON/OFF optical switching using combined acousto-optic and electro-optic switches
US7327462B2 (en) * 2005-08-17 2008-02-05 Litton Systems, Inc. Method and apparatus for direct detection of signals from a differential delay heterodyne interferometric system
US11552713B1 (en) * 2021-10-07 2023-01-10 Bifrost Communications ApS Optical transmission systems, receivers, and devices, and methods of combining and receiving optical signals
CN114895281B (zh) * 2022-05-10 2023-09-29 上海枢光科技有限公司 一种本征信号与目标返回信号生成目标信息的方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723315A (en) * 1986-06-24 1988-02-02 Itek Corporation Polarization matching mixer
JPH01178940A (ja) * 1987-12-29 1989-07-17 Nec Corp 偏波ダイバーシチ光受信装置
US5008958A (en) * 1988-01-19 1991-04-16 At&T Bell Laboratories Polarization-insensitive technique for coherent optical communication
JPH01185037A (ja) * 1988-01-20 1989-07-24 Hitachi Ltd 光送信器，光受信器及び光伝送装置並びに光受信器の制御方法
US5023946A (en) * 1988-07-29 1991-06-11 Nec Corporation Polarization diversity optical heterodyne receiver with phase adjustment of two I.F. signals for control of a local optical source
DE68915964T2 (de) * 1988-12-03 1994-11-03 Toshiba Kawasaki Kk Optische Mischer-Anordnung.
US5363228A (en) * 1993-03-05 1994-11-08 General Electric Company Optical device with spatial light modulators for switching arbitrarily polarized light
US5448058A (en) * 1993-04-27 1995-09-05 Litton Systems, Inc. Optical signal detection apparatus and method for preventing polarization signal fading in optical fiber interferometric sensor systems

Also Published As

Publication number Publication date
EP0779719A3 (en) 2001-01-03
JP3281827B2 (ja) 2002-05-13
EP0779719A2 (en) 1997-06-18
DE69632180D1 (de) 2004-05-19
KR970048641A (ko) 1997-07-29
DE69632180T2 (de) 2005-03-17
JPH09186656A (ja) 1997-07-15
CA2190915A1 (en) 1997-06-12
EP0779719B1 (en) 2004-04-14
US5852507A (en) 1998-12-22
AU7425696A (en) 1997-06-19
AU704766B2 (en) 1999-05-06
NO319056B1 (no) 2005-06-13
CA2190915C (en) 2003-08-12
NO965283L (no) 1997-06-12
KR100279060B1 (ko) 2001-02-01

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Legal Events

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